(a) Use your calculator to check that sin 10 sin 50 sin 70
Chapter 8, Problem 64(choose chapter or problem)
(a) Use your calculator to check that sin 10 sin 50 sin 70 1/8 (b) Prove that the equation in part (a) is indeed correct. Hint: Use the technique in Exercise 63; begin with the equation sin 80 2 sin 40 cos 40.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer